Heating-furnace



(No Model.)

8 Sheets-Sheet 1. J. S. GARD.

. "Heating Furnace. No. 241,959. Patented May 24, I881.

0&

WITNESSES INVENTOR i ATTORNEY! mans, MoLithognyMr, mm o. c.

(No Model.) a Sheets-Sheet 2.

J. S. GA'RD. Heating Furnace.

'No. 241,959. v Patented May 24,1881.

. wmmssns INVENTQR N. PETERS. MUM W-Nnllm ILC.

(No Model.) a Sheets-Sheet a.

J. s. GARD. Heating Furnace.

No. 241,959. Patented May 24, I881.

INVENTOR 6 AIIQORNEY u. PETERS. w-wnm 0.1;

PATENT OFFICE.

JOHN S. GARD, OF TREMONT CITY, OHIO.

HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 241,959, dated May 24,1881.

Application filed March 7,1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN S. GARD, of Tremont City, in the county ofClarke and State of Ohio, have invented certain new and usefulImprovements in Heating Furnaces and Stoves; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specification.

My invention relates to heating-furnaces and ventilatin g-stoves, theobject ofthe same being to furnish convenient means of access forclearing away the soot and unconsumed products of combustion frombetween the hot-air chamber and the cylinder G surrounding the same; andit consists in certain details in construction and combinations of partsas will be hereinafter explained, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical section of myfurnace or stove. Fig. 2 is a view with the'outer casing removed. Fig; 3is a vertical section taken through the upper chamber; and Fig. 4 is atransverse vertical section through the line a: w of Fig. 1.

A represents the outer casing, which completely surrounds the internalparts, and is provided with the usual openings for the hotair pipes,smoke-pipe, and doors, and has, in addition thereto, openings on thesides for drawing the air from different parts of the house to beheated, and also capped holes a on the top thereof, for the purpose ofcleaning the interior of the furnace or stove.

The ordinary ash-pit, with grate, rests immediately on the perforatedbottom b of the outer casing, and is surmounted by a fire-bowl andbell-top, which compose the combustionchamber B, which is provided atits upper end with a perforated transverse annular flange, O, on'whichthe cylinder 0 rests, thereby forming a smoke-space between the cylinder0 and the hot-air chamber, through which the smoke passes. The annularflange G is perforated at suitable distances apart for the passage ofthe cold-air pipes 11 which lead directly from the outer sides of thefire'cliamber or fromthe outer. air to the under side of and into thehotair chamber D.

The fire-box is provided with an opening for the introduction of fuel,which is connected to the outer casing by a neck, D 011 the outer end ofwhich is secured the door I).

The cylinder 0 rests on the transverse annu' lar flange, and iscontinued upward and completely surrounds the hot-air chamberD, therebyforming an annular smoke-space between the outside of the hot-airchamber D and the inside of the cylinder 0. This cylinder is perforatedon top, and has a smoke-pipe, 0, secured therein, and extends up throughthe hot air space between the outer casing and cylinder 0, and connectswith the smoke-pipe which leads to the chimney.

The top or lid ofcylinder O is provided with openings cZhaving flangedshoulders, on which are secured removable caps 0 These openings can beof any desired size or number, and are placed over the annularsmoke-space c, and are immediately under the openings at in the outercasing, thereby allowing access from the outside of the outer casing tothe smokespace 0 into which can be inserted the brushes or scrapers usedfor the purpose of freeing the adjacent parts of the soot lodgedthereon.

The hot-air chamber D is located inside of the cylinder 0 and over thefire-box, and is held in place by the cold-air pipes, which connect thehot-air chamber, from the bottom thereof, with the air-space surroundingthe firebox, and also by the hot and cold air pipes extending from thesides thereof and through the sides of the cylinder 0 and outercasing,respectively. A smoke-flue, a extending throughout the entirelength of the hot-air chamber and terminating above in the annularsmoke-space c conveys part of the smoke away, while the rest passesaround through the annular smokespace 0 and out through the smoke-pipe.

The hot-air chamber D is provided with two or more pipes, at, which passthrough the outer casing, A, and intermediate casing, O, and connectwith registers or pipes which lead to registers or openings in the flooror ceiling of the rooms above the furnace and draw the air down andmingle it with the cold air received from the pipes in the bottom of thehot-air chamber D. Hot-air pipes (0 connect the hotair chamber at ornear its top with the outer hot-air space, from whence the air is takenby the pipes a which open into the top of easing A, and distributedthroughout the building.

From the foregoing it will be seen that the cold air entering thefurnace or stove from beneath it is heated to a considerable degree bypassing up around the tire before entering the hot-air chamber, andalter entering the chamber is still further heated by the direct actionof the fire on the bottom of the chamber and from the smoke-spacesurrounding the same.

The openings on the top of the cylinder 0 and outer casing offerconvenient access to the smoke-chamber, and allow brushes or cleaners tobeinserted thereinto for removing sooty deposits on the walls thereof.These openings may be provided with removable or hinged caps, as isdesired.

I am aware that heating furnaces and stoves have been constructed with aheating-drum inclosed within an outer cylinder and the smoke caused toflow upwardly through a pipe extending through the drum, and the air tobe conveyed from the drum through the openings in the outer cylinder,and hence I make no broad claim to such an arrangement of parts.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a heating furnace or stove, the combination, with the outercasing, A, provided with capped openings a, of the intermediatecylinder, G,provided with capped openings 0 and hot-air chamber 1), theopenings at and c being arranged to permit of access to the smokechamber between the hot-air chamber D and intermediate cylinder, 0,substantially as set forth.

2. In a heating-furnace, the combination, with the outer casing, A,provided with heatedair-discharge openings a of the intermediatecasing,(), provided with smoke-flue c, hot-air chamber D, centralsmoke-flue, a, and pipes a a, substantially as set forth.

3. Inaheating-furnace,thecombination,with the outer casiu g, A, providedwith dischargeopenings (0",01' the intermediate easing, (J, providedwith smoke-flue c and hot-air chamber D, smoke-flue a and pipes a", a,and I)", substantially as set forth.

In testimony that I claim the lbregoing I have hereunto set my hand this22d day of February, A. I). 1881.

JOHN S. GARD.

Witnesses:

JOHN H. BLOSE, M. J. HUGHES.

